nologin(8) - Linux man page
Name
nologin - politely refuse a login
Synopsis
nologin
-
Description
nologin displays a message that an account is not available and exits non-zero. It is intended as a replacement shell field for accounts that have been disabled.
If the file /etc/nologin.txt exists, nologin displays its contents to the user instead of the default message.
See Also
login(1)
History
The nologin command appeared in 4.4BSD.
BSD February 15, 1997 BSD